Total Lunar Eclipse from Sydney

The reddened shadow of planet Earth plays across the lunar disk in this telescopic image taken on May 26 near Sydney, New South Wales, Australia. On that crisp, clear autumn night a Perigee Full Moon slid through the northern edge of the shadow’s dark central umbra. Short for a lunar eclipse, its total phase lasted only about 14 minutes. The Earth’s shadow was not completely dark though. Instead it was suffused with a faint red light from all the planet’s sunsets and sunrises seen from the perspective of an eclipsed Moon, the reddened sunlight scattered by Earth’s atmosphere. The HDR composite of 6 exposures also shows the wide range of brightness variations within Earth’s umbral shadow against a faint background of stars. via NASA

Wikipedia article of the day for May 28, 2021

Wikipedia article of the day is Menstrual cycle. Check it out: Article-Link Summary: The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that make pregnancy possible. Naturally occurring hormones drive two concurrent and coordinated cycles that last about 28 days. The ovarian cycle controls the production and release of eggs and the release of the hormones estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the uterus (endometrium) to receive a fertilized egg. Menstruation, a “period” in common parlance, begins on day one of the cycle, and lasts for about five days. Around day fourteen, an egg is usually released from the ovary. Estrogen stimulates the uterus lining to thicken to accommodate an embryo should fertilization occur. If implantation does not occur, the lining is released during menstruation. Menarche (the first period) usually occurs around age twelve, and menstrual cycles usually continue for 30–45 years until menopause.